我在常规视图中嵌入了一个表格视图(如这张图片所示:Picture)
我有一个搜索栏和工作代码,因此当您开始搜索某人的电子邮件时,表格视图会自动更新,并仅显示符合搜索条件的人。
有没有办法在第一个视图中将textField用作搜索栏?
(如果您查看Picture,则用户将在其中键入“ para”的标签来键入其联系人的电子邮件,我是否可以将该标签用作搜索栏,如果是,怎么样?)
换句话说,我将如何使用“ forField”作为搜索栏(forField在代码的第二位)
这是tableView的代码(当前有效):
class UsersTableViewController: UITableViewController, UISearchResultsUpdating {
func updateSearchResults(for searchController: UISearchController) {
//update the search results
filterContent(searchText: self.searchController.searchBar.text!)
}
@IBOutlet var usersTableView: UITableView!
let searchController = UISearchController(searchResultsController: nil)
var usersArray = [NSDictionary?]()
var filteredUsers = [NSDictionary?]()
var databaseRef: DatabaseReference!
override func viewDidLoad() {
super.viewDidLoad()
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation = false
definesPresentationContext = true
tableView.tableHeaderView = searchController.searchBar
databaseRef = Database.database().reference()
let usersRef = databaseRef.child("users")
let query = usersRef.queryOrdered(byChild: "email")
query.observe(.childAdded, with: {(snapshot) in
self.usersArray.append((snapshot.value as? NSDictionary?)!)
//insert the rows
self.usersTableView.insertRows(at: [IndexPath(row:self.usersArray.count-1, section: 0)], with: UITableView.RowAnimation.automatic)
}) { (error) in
print(error.localizedDescription)
}
print("HOLAAAAAAAAAAA")
print(self.usersArray)
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
if ((searchController.isActive) && (searchController.searchBar.text != "")){
return filteredUsers.count
}
return self.usersArray.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
let user: NSDictionary
if ((searchController.isActive) && (searchController.searchBar.text != "")){
user = filteredUsers[indexPath.row]!
}else{
user = self.usersArray[indexPath.row]!
}
cell.textLabel?.text = user["email"] as? String
cell.detailTextLabel?.text = user["name"] as? String
return cell
}
func filterContent(searchText: String){
self.filteredUsers = self.usersArray.filter({ user in
let userEmail = user!["email"] as? String
return(userEmail?.lowercased().contains(searchText.lowercased()))!
})
tableView.reloadData()
}
}
对于视图控制器,它实际上只是文本字段和标签。
class PayViewController: UIViewController, STPAddCardViewControllerDelegate {
@IBOutlet weak var forField: UITextField!
@IBOutlet weak var toField: UITextField!
@IBOutlet weak var ammountLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
}
}
换句话说,我将如何使用“ forField”作为搜索栏
在最近的评论和更新之后,我在payViewController中添加了以下内容:
override func viewDidLoad() {
super.viewDidLoad()
//var myTable:UsersTableViewController?
myTable = self.children[0] as! UsersTableViewController
self.toField.addTarget(self, action: #selector(UsersTableViewController.textChanges(_:)), for: UIControl.Event.editingChanged)
}
,并在表视图控制器中更改了以下功能:
func updateSearchResults(for searchController: UISearchController) {
//update the search results
filterContent(searchText: searchT)
}
@objc func textChanges(_ textField: UITextField) {
let text = textField.text! // your desired text here
// Now do whatever you want.
searchT = text
}
答案 0 :(得分:0)
您的问题是从父母那里访问孩子,因此您需要在PayViewController
内声明它
var myTable:UsersTableViewController?
和viewDidLoad内部
myTable = self.children[0] as! UsersTableViewController
在此之后,textfeilds会进行动作
myTable.filterContent(searchText:forField.text!)
此外,您还可以在searchController
内传输与搜索栏相关的内容,或删除该子项并在字段下方直接添加表格,然后在PayViewController
内制作所有内容
您不必使用
UITableViewController
来利用表,UITableView
的实例就足够了,并且可以直接作为vc中的子视图